Bowhunting is 100% about penetration at impact, and FORCE F.O.C. from Gold Tip is built to deliver Extremely lightweight, high F.O.C. design in a configuration that’s easy for any hunter to use, it makes every shot a show of FORCE Specifications: .246 inside diameter +/- .5 grain weight tolerance +/- .001” straightness tolerance Multiple laser full-shaft straightness sorting Smart Carbon Technology – pure carbon, no fillers Legendary durability & straightness retention Includes Brass and Aluminum inserts Weight: 250 Spine 9.8 grains per inch | 300 spine 8.8 grains per inch | 340 spine 8.2 grains per inch | 400 spine 7.4 grains per inch